Patent · US Active

Waste water immersion probe

US8069706B2 · kind B2 · utility

15Cited by

8References

16Claims

0Family size

Assignee

HACH LANGE GMBH · DE

Inventors

Manfred Battefeld · Goldkronach, DE
Andreas Jonak · Meerbusch, DE
Lothar Heidemanns · Korschenbroich, DE
Axel Leyer · Rheydt, DE
Michael J. Schuster · Shorewood, US

Key dates

Filing date	Jan 16, 2007
Grant date	Dec 6, 2011
Priority date	—
Expiry date	Aug 19, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01N2291/044
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a waste water immersion probe (10) comprising a liquid-tight housing (11), a sensor (18) which is disposed in the housing (11) and a sensor window (20) formed on the housing (11). A wiper element (22) for cleaning the sensor window (20) is arranged on the outside of the sensor window (20), and the wiper element (22) is driven by a drive motor (24) which is arranged essentially in the housing (11). The housing is devoid of openings. A magnetic element (36, 37) is associated with the drive motor (24) and a magnetic element (34, 35) is associated with the wiper element (22) in such a manner that the magnetic drive motor element (36, 37) produces a magnetic field which transverses the housing wall and transmits a drive torque to the wiper element (22) without a shaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.